diff --git a/pkgs/development/compilers/mkcl/default.nix b/pkgs/development/compilers/mkcl/default.nix
index 2a34a5dc50b1..6d17d5a8b25d 100644
--- a/pkgs/development/compilers/mkcl/default.nix
+++ b/pkgs/development/compilers/mkcl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, gmp }:
+{ stdenv, fetchgit, makeWrapper, gmp, gcc }:
 
 stdenv.mkDerivation rec {
   v = "1.1.9";
@@ -10,6 +10,7 @@ stdenv.mkDerivation rec {
     sha256 = "0ja7vyp5rjidb2a1gah35jqzqn6zjkikz5sd966p0f0wh26l6n03";
   };
 
+  buildInputs = [ makeWrapper ];
   propagatedBuildInputs = [ gmp ];
 
   configureFlags = [
@@ -17,6 +18,10 @@ stdenv.mkDerivation rec {
     "GMP_LDFLAGS=-L${gmp}/lib"
   ];
 
+  postInstall = ''
+    wrapProgram $out/bin/mkcl --prefix PATH : "${gcc}/bin"
+  '';
+
   meta = {
     description = "ANSI Common Lisp Implementation";
     homepage = https://common-lisp.net/project/mkcl/;
diff --git a/pkgs/development/compilers/sbcl/1.2.0.nix b/pkgs/development/compilers/sbcl/1.2.0.nix
index d19edce2c105..975cb7db1bbf 100644
--- a/pkgs/development/compilers/sbcl/1.2.0.nix
+++ b/pkgs/development/compilers/sbcl/1.2.0.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
       sh make.sh clisp --prefix=$out
     ''
     else ''
-      sh make.sh --prefix=$out --xc-host='${sbclBootstrap}/bin/sbcl --core ${sbclBootstrap}/share/sbcl/sbcl.core --disable-debugger --no-userinit --no-sysinit'
+      sh make.sh --prefix=$out --xc-host='${sbclBootstrap}/bin/sbcl --disable-debugger --no-userinit --no-sysinit'
     '';
 
   installPhase = ''
diff --git a/pkgs/development/compilers/sbcl/1.2.5.nix b/pkgs/development/compilers/sbcl/1.2.5.nix
index 6c0fa874f3eb..68ed58b426f6 100644
--- a/pkgs/development/compilers/sbcl/1.2.5.nix
+++ b/pkgs/development/compilers/sbcl/1.2.5.nix
@@ -66,7 +66,7 @@ stdenv.mkDerivation rec {
       sh make.sh clisp --prefix=$out
     ''
     else ''
-      sh make.sh --prefix=$out --xc-host='${sbclBootstrap}/bin/sbcl --core ${sbclBootstrap}/share/sbcl/sbcl.core --disable-debugger --no-userinit --no-sysinit'
+      sh make.sh --prefix=$out --xc-host='${sbclBootstrap}/bin/sbcl --disable-debugger --no-userinit --no-sysinit'
     '';
 
   installPhase = ''
diff --git a/pkgs/development/compilers/sbcl/default.nix b/pkgs/development/compilers/sbcl/default.nix
index a865b7e1d4be..e8aabbbcb8a4 100644
--- a/pkgs/development/compilers/sbcl/default.nix
+++ b/pkgs/development/compilers/sbcl/default.nix
@@ -65,7 +65,7 @@ stdenv.mkDerivation rec {
   '';
 
   buildPhase = ''
-    sh make.sh --prefix=$out --xc-host="${sbclBootstrapHost}"
+    sh make.sh --prefix=$out --xc-host="${sbclBootstrapHost} --disable-debugger --no-userinit --no-sysinit"
   '';
 
   installPhase = ''